(Multiple Choice)

(1)

The magnitude of the displacement of a particle is ___ the distance the object has traveled. (b) Smaller than

(c) Either larger or smaller

(d) The same as

(e) Smaller than or equal to

(2)

The components of a vector are Ax = −10 m and Ay = 6 m. What angle does this vector make with the positive x axis?

(a) 31°

(b) −31°

(c) 180° − 31°

(d) 180° + 31°

(e) 90° − 31°

(3)

A velocity vector has an x component of +5.5 m/s and a y component of −3.5 m/s. Which diagram in figure gives the direction of the vector?

(4)

Three vectors A, B, and C have the following x and y components: Ax = 6, Ay = -3; Bx = -3, By = 4; Cx = 2, Cy = 5. The magnitude of A + B + C is _______.

(a) 3.3

(b) 5.0

(c) 11

(d) 7.8

(e) 14

(5)

If an object is moving toward the west, in what direction is its acceleration?

(a) North

(b) East

(c) West

(d) South

(e) May be any direction.

(6)

A particle moving at 4.0 m/s in the positive x direction is given an acceleration of 3.0 m/s2 in the positive y direction for 2.0 s. The final speed of the particle is ____. (a) -2.0 m/s

(b) 7.2 m/s

(c) 6.0 m/s

(d) 10 m/s

(e) None of the above